Chairunnisa, Chairunnisa, dkk. “PERBANDINGAN HASIL BELAJAR MENGGUNAKAN MODEL KOOPERATIF TIPE NUMBER HEAD TOGETHERDAN MODELSTUDENT TEAM ACHIEVEMENT DIVISION MATERIVIRUSDI KELAS X”. Jurnal Pelita Pendidikan, vol. 4, no. 4, Desember 2016, doi:10.24114/jpp.v4i4.6641.